Nazi agent tasked with running occult and super-science espionage in the United States. After he acquired the [[Book of Frankenstein|Book of Frankenstein]],​he was defeated by vigilantes in Gotham, March 1934, but managed to escape capture. ​ He routinely wears heavy steel armor and a full-head covering steel mask/​helmet.

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Nazi agent tasked with running occult and super-science espionage in the United States. After he acquired the [[Book of Frankenstein|Book of Frankenstein]],​he was defeated by vigilantes in Gotham, March 1934, but managed to escape capture. ​ He routinely wears heavy steel armor and a full-head covering steel mask/​helmet. ​ Team C caught up to and killed Baron Stahl on October 1, 1934